Their 8-year-old daughter Elizabeth Collins and 10-year-old Lyric Cook disappeared in July 2012. They were last seen riding their bikes near a lake. Their bodies were found several months later in a rural area.

Family and friends of the girls have worked to make a lasting memorial to them and other murdered children in Angels Park in Evansdale.

The park features a sculpture, gazebo and flowers.

Elizabeth Collins’ mother said it doesn't feel like two years have gone by.

“I try not to look at the clock because every time I look at the clock, I think this is what I was doing at this time two years ago, or something like that,” she said.

No arrests have been made in the case, and no arrests seem imminent two years after the disappearance of the girls.

Evansdale Police Chief Kent Smock said investigators continue to chase new leads in the case.

Rewards continue to be offered for tips that will lead investigators to an arrest.

Officials encourage anyone with information on the case to call the Evansdale Police tip line at 232-6682 or Cedar Valley Crime Stoppers at (855) 300-8477.